Locking mechanism



J. S. POWER AND J. W. PEAHSON.

LOCKING NIECHANESMt APPLlcATIoN man MALZS, '1921.

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Mj @am Patented @et l?, 1922.,

JOSEPH s. POWER AND JOHN w. rnAnsoN, or DAYTON, OHIO7 AssrGNoRs To THE DAVIS SEWING MACHINE COMPANY, or DAYTON, OHIO, n CORPORATION or' msna- WARE.

`LOCKING MECHANISIVI.

Application filed March 28, w21. ySerial No. 456,164.

To all who/m t may concern Be it known that we, JOSEPH Pownn andv JOHN WV. PEARsoN, citizens of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful lmprovements in Locking Mechanism, of which the following is a specification, reterence being had therein to the accompanying` drawing.

Our invention relates to a locking mechanism for a control wire and in particular to a locking mechanism for controlling the operation of a drain.

The object of our invention is to provide a positive and simple means of positioning a Bowden wire with respect to its casing and keeping it in locked position until actuated by the operator. ln the particular adaptation shown we have attached it to a drain described and claimed in our co-pending application No. 456,163. lllt is our purpose to provide a structure that will be positive in action, simple to operate by unskilled users, and will be cheap to construct.

Referring to the drawings:

Fig. l, shows the locking mechanism mounted on one wall of a washing machine or a washing machine tub with a View of the drain to be operated shown in section;

Fig. 2, is a plan view of one ot the locking arms; y

Fig. 3, is a plan View ot' the spring retaining clamp with the spring members, Bowden wire and Bowden wire tube in section; and,

Fig. 4, is a section through af-a of Figure 1, in the direction of the arrows and shows the position of the spring ends.

Discussing the drawings in detail, 1 is linger piece or operating head that is cOnnected to the Bowden wire 2 by a set screw 3. rl`his head has a tubular casing 4 loosely litting over the top of the Bowden wire guide 5. At the lower end of this tubular casing 4 is an expanded portion or collar 6 having a groove 7 therein. This groove is embraced on either side by the semi-circular` end' 8 of the locking arm 9. The outer end of the locking arm has an aperture 10 that lits over the hooked end 11 of the spring wire 12. rlfhis spring wire 12 resists eX- pansion and tends to keep the arms 9 from passing over the dead center. rlhis wire is U-shaped and is supported at 13 by the clamp 14 which also serves as a guide at 15 for the casing 5 of the Bowden wirecontrol.. This casing is further retained. in position by the clamp 16. The ends 22 of the spring wire 12 are so shaped as to form a stop, in the open position, for the collar 6.

The Bowden wire may pass to any desired location. ln this instance it is operating the Valve member 17 in connection with a lip 18 of the oririce 19 ot' the drain 2O which attached to awashing machine tub 21. The locking structure may be attached through the clamps 14 and 16 to any desired portion of the washing machine. ln this instance .l have shown it attached to the side of the tub 21.

To operate the lock, the operator grasps the head 1 to which the Bowden wire 2 Vis connected and pushes it upwardly or downwardly. It will remain in either position because of the action of the spring 12 which resists the arms 9 'passing over the dead center because that is the point of the maximum expansion of the two .arms of the spring l2 and the tendency of the springl `arm is to maintain the head l and the tubular member 4 together with the collar 6 in either the upper or lower position and to maintain them in that position positively.

While we have shown and described certain features as constituting my invention, it will be understood that parts have been shown for purposes of illustration only, and that we do not desire to be limited to such details, as obvious modifications will occur to a person skilled in the art.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is

1. In combination, a Bowden wire, a casing for said wire. an actuator head attached to said wire and slidingly engaging with one end of said casing, a collar on said actuator head, an arm having one end engaging said collar and the other end engaging a resilient means to resist the outward movement of the arm, and means for maintaining the guiding means for the Bowden wire in a fixed position, whereby the Bowden wire may be maintained in desired positions.

2. In combination, a Bowden wire, a tubular member for guiding said wire, an actuator member attached to said wire with a cylindrical portion fitting over the guiding member for the wire, a collar on one end of said cylindrical portion surrounding said guiding member, a pair oit arms having their ends engaging with a groove in said collar, a U-shaped spring member having yarrnson either'sidevo'f ysaid collar, the ends the'r-eo'ic engaging with the i'r'ee ends oi the arms, whereby the wire may be maintained in any desii'ed position.

3. In combination, a Bowdenwire, a tubular member for guiding said wire, an ac'- tuator member attached to said wire with a cylindrical portion fitting over-the` guiding member orthe wire, a'collar on one end of said cylindrical portion surrounding vsaid guiding member, a pair orf arms having their :ends engaging witha groove in said collai, a

U-shaped vspring member having arms on veither sidev of said collar, the ends thereof engaging with the free ends of the arms, a yclamp for supporting said casing of the wire and the `U-shaped resilient 'member in position, anda clamp :for maintaining the upper -end of the casing in position` adjacent the upper ends of tlie resilient members, whereby the wire may be maintained in any desired position.

d. In combination, a Bowden wire, a tubu- .lar member for guiding said wire, an actuator member attached to said wire with a cylindrical portion littingover the guiding member for the wire, a collar on one end ofv said cylindrical portion surrounding said guiding member, a pair of arms having their ends engaging fwitli a groove in said collar, a

v'lj-shaped spring member having arms on either'side of said collar, `the ends thereoi: engaging withlthe reeends-of the arms, a clamp 'for supporting said casing of the wire andthe U-shaped resilient member in position, and a clamp 'for maintaining the `upper'end of the casingin position adjacent `ment of the arm, meaiisffor .maintaining they vguiding .means for the Bowden wire in Aa liXed position, .a valve member attached to said wire, va valve port, and a yielding seat for said valve port to cooperate with said valve member, whereby the Bowden wire may -be maintained. in desired positions.

a6. In combination, a Bowden'wire, a rcasing for said wire, an actuator'head attached .to said lwire and slidingl-y engaging with one end of said casing, va kcollar on said actuator head, fan arm having-one end engaging said collar and the other end engaging a resi-lient means to resist the outward movement of the arm, means lfor maintaining the s guiding imeans for the Bowden wire in a iiXed position, valve l.member attached to said wire,

ya valve port, and a yielding seat for said valve port to'y cooperate with said valve mem- ;ber, said casing for the Bowden wire attached to said valve member being projected into said valve member and slidingly engaging therewith to act as a guide therefor in positioning saidfmember with' respect to said valve seat, whereby the Bowden wire may be maintained in desired positions.

'In testimony whereof, we aix our signatures.

JOSEPH S. PO'VVER. JOHN W. PEARSON. 

